Method for selecting communication network by wireless terminal
a wireless terminal and communication network technology, applied in the direction of wireless commuication services, power management, electrical equipment, etc., can solve the problems of less expensive wlans and more expensive mobile communication networks selected, and achieve the effect of more efficient selection
Active Publication Date: 2007-08-30
SAMSUNG ELECTRONICS CO LTD
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Benefits of technology
The present invention provides a method for a wireless terminal to efficiently select between a mobile communication network and a wireless local area network in a heterogeneous network environment. The method involves calculating the guaranteed data rate of each network using the reception power of a signal, and comparing it with a minimum guaranteed data-rate. The selection factor value is then calculated for each network based on its guaranteed data rate, and the network with the highest selection factor value is selected. This method helps ensure efficient use of network resources and improved user experience.
Problems solved by technology
In addition, there is a problem in that, even when the reception power from the WLAN is only slightly less than the reception power from the mobile communication network, the less expensive WLAN will not be selected but the more expensive mobile communication network will be selected.
Method used
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[0019] Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the embodiment of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.
[0020] The following description will be described with respect to given with a tightly-coupled connecting system between a mobile communication network and a wireless local area network (WLAN) as an example.
[0021]FIG. 1 is a block diagram illustrating the construction of a connecting system between different types of networks according to the present invention. The tightly-coupled system, which is a connecting system between a mobile communication network and a wireless local area network (WLAN), will now be described with reference to FIG. 1. The connecting system between the mobile communication network and WLAN include...
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Disclosed is a method for selecting a communication network by a wireless terminal, the method including receiving a signal having a predetermined reception power level from one or more communication networks, and calculating a guaranteed data rate of each of said one or more communication networks by using the predetermined reception power level of the signal; comparing the calculated guaranteed datarate with a minimum guaranteed datarate; and calculating a selection factor value of each of said one or more communication networks by using the guaranteed datarate when all guaranteed datarate of said one or more communication networks are equal to or greater than the minimum guaranteed datarate, and selecting a communication network having a lowest selection factor value.
Description
PRIORITY [0001] This application claims the benefit under 35 U.S.C. 119 of an application entitled “Method For Selecting Communication Network By Wireless Terminal” filed in the Korean Intellectual Property Office on Feb. 8, 2006 and assigned Serial No. 2006-12289, the entire contents of which are incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a method for effective network selection by a wireless terminal in a heterogeneous network environment, and more particularly to a method for a more efficient selection by a wireless terminal between a mobile communication network and a wireless local area network (WLAN) in a heterogeneous network environment. [0004] 2. Description of the Related Art [0005] Conventional mobile communication networks are classified into a frequency division multiple access (FDMA) scheme, a time division multiple access (TDMA) scheme and a code division multiple access (CDMA)...
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IPC IPC(8): H04B7/185
CPCH04W48/18H04B7/2621H04W52/0203
Inventor JEON, CHEOL-YONGCHUNG, IN-OHNAM, SANG-JUNCHUNG, JAE-PIL
Owner SAMSUNG ELECTRONICS CO LTD